Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6072402 | Secure entry system with radio communications | John M. Kniffin, Ralph H. Wells, III, John W. Sherman, Wayne F. Larson | 2000-06-06 |
| 5705991 | Access control device featuring key ordering or key simultaneity | John M. Kniffin, Ralph H. Wells, III, John W. Sherman, Wayne F. Larson | 1998-01-06 |